Whiffletree



(No Model.)

E. L. LIBDKE.

WHIPPLBTRBB.

No. 359,873. Patented Mar. 2Z, 1887.A

N. PETERS. Phow-Lixhegrzphan washington. D. C.

UNITD STATES PATENT @trice EDWARD L. LIEDKE, OF SANDUSKY, OHIO.

WHlFiLETREE.'

SPECIFICATION forming part of Letters Patent No. 359,873, dated March 22, 1887.

Application filed February 3, 1887. Serial No. 226,381. (No model.)

To all whom it may concern:

Be it known that l, EDWARD L. Lrnnnnof Sandusky, in the county of Erie and State of Ohio, have invented new and useful Improvements in Spring-Vhietrees; and I do hereby declare that the following is a full, clear, and exact description thereof, referencebeing had tothe accompanying drawings, which form a part of this specification.

Thisiuvention relates to certain new and useful improvements in spring-whiflletrees.

The invention consists in the peculiar construction of a jointed whifdetree, in combination with a resistance-spring, and in the peculiar construction, arrangement, and combination of the 'various parts, all as more fuily hereinafter set forth.

Figure l is atop plan of myiniproved whiftletree. Fig. 2 is a crosssection showing construction of the hinge.

In the accompanying drawings, which form a part of this specification, A A represent two suitable members of a hinge, which are secured together by that class ot' hinge-joint denominated a rule-joint,7 the parts being secured together by a proper bushing, B,which may be either solid or hollow, riveted on each end. Each casting A is provided on its edges with projecting lugs rawhich serve as stops to prevent the parts moving beyond a certain point. In these castings A are itted the whiftietree-arnis C, of wood or other suitable material, and to which the draft force is applied, in the usual manner.

D is a semi-elliptic spring, of any desired construction, and which is banded at its longitudinal center by a band, E, said band be' ing provided with a lug or pin, b, designed to engage with an elongated recess in the adjacent edge of the hinge. The ends of this spring are connected by linksF to the arms C of the whiflietree, said links in their normal positions being at right angles to the longitudinal direction of the whiletree.V

The whiiiietree in its normal position, under the action of the spring. is sprung back till arrested by the stops o upon the rear edge Y,

ot' the hinge. As draft force is applied the arms of the whiiiietree assume the position shown in the drawings, and it' the load is sufficiently heavy they are drawn forward till arrested by the front stops, u.

While I have described my device, broadly, as a whifdetree, it is obvious that the construction can readily be applied to either the doubletree or singletree and still be within the spirit of my invention.

The advantages of a spring-whifiietree are so well known it is not deemed necessary to enter into a further description hereof.

Vhat I claim as my invention isl. A springwhifletree constructed in two parts, connected together by a rule-joint provided with Vstops upon both edges thereof', formed by the abutting ends of the members of the hinge, in combinalion with a spring and connectinglinks, substantially as and for the purposes described.

2. Aspring-whiiiletreeconsistingof the castings A, connected together by a rulejoiut provided with stops a, and a bushing, B, arms C,

. spring D, baud E, links F, and pinb, the parts being constructed, arranged, and operating substantially in the manner and for the purposes set forth.

EDWARD L. LIEDKE.

Witnesses:

H. S. SPRIGUE, E. SCULLY. 

